--- product_id: 713324995 title: "Loctite PL Marine Fast Cure Adhesive Sealants, Waterproof Construction Glue for Fiberglass, Vinyl, Glass & More - 3 fl oz Cartridge, Pack of 1" brand: "loctite" price: "$97.97" currency: USD in_stock: true reviews_count: 5 category: "Loctite" url: https://www.desertcart.us/products/713324995-loctite-pl-marine-fast-cure-adhesive-sealants-waterproof-construction-glue store_origin: US region: United States of America --- # Waterproof above/below waterline Fast 30-min initial set Strong flexible bond on multiple materials Loctite PL Marine Fast Cure Adhesive Sealants, Waterproof Construction Glue for Fiberglass, Vinyl, Glass & More - 3 fl oz Cartridge, Pack of 1 **Brand:** loctite **Price:** $97.97 **Availability:** ✅ In Stock ## Summary > 🌊 Seal it fast, seal it strong — your marine projects deserve the best! ## Quick Answers - **What is this?** Loctite PL Marine Fast Cure Adhesive Sealants, Waterproof Construction Glue for Fiberglass, Vinyl, Glass & More - 3 fl oz Cartridge, Pack of 1 by loctite - **How much does it cost?** $97.97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/713324995-loctite-pl-marine-fast-cure-adhesive-sealants-waterproof-construction-glue) ## Best For - loctite enthusiasts ## Why This Product - Trusted loctite brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid 30-Minute Tack:** Get back to your project faster with a fast-setting formula that cures fully in 24 hours. - • **Flexible & Durable Finish:** Maintains permanent flexibility to absorb movement and prevent cracks in harsh marine environments. - • **Eco-Conscious & Safe Formula:** Free from solvents, phthalates, and isocyanates—strong on performance, gentle on the planet. - • **Marine-Grade Waterproof Seal:** Trust a sealant designed to withstand both salt and fresh water without shrinking or bubbling. - • **Versatile Multi-Surface Adhesion:** Bonds seamlessly to fiberglass, vinyl, glass, metal, wood, and most plastics for all your marine fixes. ## Overview Loctite PL Marine Fast Cure Adhesive Sealant is a 3 fl oz waterproof, fast-setting polyether gel designed for marine applications. It bonds strongly and flexibly to a wide range of materials including fiberglass, vinyl, glass, and metal, curing fully in 24 hours to create a durable, watertight seal above or below the waterline. Ideal for through-hull fastening, deck fittings, and other marine repairs, it resists salt and fresh water without shrinking or bubbling, ensuring long-lasting protection in demanding environments. ## Description Specifically designed for marine areas and conditions, Loctite PL Marine Fast Cure Adhesive Sealant is a fast setting, moisture cure polyether adhesive sealant that delivers strong bonds above or below the waterline once cured. This tough, paintable sealant dries white withstands both salt water and fresh water and does not shrink or bubble on damp surfaces. Loctite PL Marine Fast Cure Adhesive Sealant sets in just 30 minutes and fully cures in 24 hours for a watertight, flexible seal that’s ideal for through-hull fastening and deck fittings deck to hull joints, port lights, moldings, struts and planking and stem joints. Free of solvents, phthalates and isocyanates, Loctite PL Marine Fast Cure Adhesive Sealant stays permanently flexible and adheres to teak and other woods, fiberglass, vinyl, glass, FRP, metal, gelcoat, polycarbonate, and most plastics (test all plastic substrates for bond strength and compatibility before use). Review: This is awesome stuff! Recommended! - I had a difficult problem. I bought a rainspout adapter which diverts water outside of the aluminum downspout into a water barrel. Problem was that it is made of rubber, flat, and up against an aluminum and wavey shaped downspout. Of course it leaked like crazy. If only I could find some way to seal this to stop the leaking. This stuff did the trick. It is white, and a very thick consistency. Formed a perfect seal and in addition holds very strong. It sticks to everything including your hands so be careful. Bought another tube for just in case. Unused product will stay usable in the tube for a while, but for longer term, you may want to place it into another very air-tight container. Highly recommended. Review: better out there - you know ## Features - May cause an allergic skin reaction. - Ideal for through-hull fastening and deck fittings - Sealant is fast setting with 24 hour cure - Delivers a watertight, flexible bond - Use above or below waterline once cured - 3 oz. squeeze tube ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DKHH2FU | | Best Sellers Rank | 559,572 in DIY & Tools ( See Top 100 in DIY & Tools ) 25,505 in Adhesives & Sealers | | Brand | Loctite | | Colour | White | | Compatible Material | Fibreglass, Glass, Metal, Plastic | | Container Type | Tube | | Customer Reviews | 4.5 out of 5 stars 470 Reviews | | Full Cure Time | 24 Hours | | Global Trade Identification Number | 00079340649163, 10079340649160 | | Included Components | Marine Sealant Tube | | Item Form | Gel | | Item Package Quantity | 1 | | Item Type Name | Fast Cure Adhesive Sealant | | Item Volume | 3 Fluid Ounces | | Item Weight | 0.01 Ounces | | Item form | Gel | | Manufacturer | Henkel Corp | | Manufacturer Part Number | 2020627 | | Material | Polyether | | Model Number | 2020627 | | Number of Pieces | 1 | | Other Special Features of the Product | Strong | | Special feature | Strong | | Specific Uses For Product | Marine | | Specific uses for product | Marine | | UPC | 079340649163 | | Unit Count | 1.0 count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Loctite - **Item form:** Gel - **Material:** Polyether - **Special feature:** Strong - **Specific uses for product:** Marine ## Images ![Loctite PL Marine Fast Cure Adhesive Sealants, Waterproof Construction Glue for Fiberglass, Vinyl, Glass & More - 3 fl oz Cartridge, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/81pqsmZ9PHS.jpg) ## Questions & Answers **Q: is this product clear** A: No, this product is not clear. It's white. **Q: Rain barrel leaking thru small cracks in plastic ring/surface surrounding where faucet screws in. will this fix leak? or loctite epoxy better? thanks!** A: Used this on a koi pond skimmer extension I made from lexan which has remained leak free for 3 years with water running over it from a pool pump . So two different forms of plastic glued without leaks. This is some sticky sealant so I would say it would do the job. Sand the cracks just to roughup the surface with some 360 grit sandpaper and this sealant should fix your problem , it's flexable after it cures so movement won't break the seal . I also used this to glue a John deere riding mower seat back on the seat frame and it is still holding. Locite makes quality thread lockers and sealants and I have never had a bad day with their products. **Q: Will it work to hold a corner bumper to a metal dock?** A: Not by itself. You will need some fastener as well. This stuff does not bond well to some plastics such as HDPE or polypropylene. **Q: Will this work with EPS/XPS Foamboard? looking to seal DIY camper shell to trailer bed. Shell is 2" Pink foamboard sandwich covered with 1/8" plywood.** A: aIt will work but there are better alternatives out there it is more of a sealant it has good adhesion but takes 24 hours to reach full strength ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is awesome stuff! Recommended! *by R***. on 18 February 2025* I had a difficult problem. I bought a rainspout adapter which diverts water outside of the aluminum downspout into a water barrel. Problem was that it is made of rubber, flat, and up against an aluminum and wavey shaped downspout. Of course it leaked like crazy. If only I could find some way to seal this to stop the leaking. This stuff did the trick. It is white, and a very thick consistency. Formed a perfect seal and in addition holds very strong. It sticks to everything including your hands so be careful. Bought another tube for just in case. Unused product will stay usable in the tube for a while, but for longer term, you may want to place it into another very air-tight container. Highly recommended. ### ⭐ better out there *by H***E on 30 March 2026* you know ### ⭐⭐⭐⭐ good adhesive but its not easy to dispense *by S***N on 2 February 2020* the adhesive/sealent is awesome it sticks to everything ive tried it on well and it dries flexible yet its tough enough that if you put it in the wrong place or make a mess you wont peel it off easily! the downside is the thickness makes it not easy to dispense (ive thougjt i was surely going to blow the back out of the tube) and on both tubes ive used the product dried in the nozzle each time so i had to use a nail to poke it or try to pull the plug of dry stuff out with pliers etc but even with that inconvienience i think its still worth the money because its such a good all around adhesive and sealant! ## Frequently Bought Together - Loctite PL Marine Fast Cure Adhesive Sealants, Waterproof Construction Glue for Fiberglass, Vinyl, Glass & More - 3 fl oz Cartridge, Pack of 1 - Dicor BT-1834-1 Butyl Seal Tape - 1/8" x 3/4" x 30' Repair Tape for RV, Trailer, Motorhome, Window, and Vent Sealing - Dicor 501LSW-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/713324995-loctite-pl-marine-fast-cure-adhesive-sealants-waterproof-construction-glue](https://www.desertcart.us/products/713324995-loctite-pl-marine-fast-cure-adhesive-sealants-waterproof-construction-glue) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-10*